What is the maximum combined length and girth for a Priority Mail Express or Priority Mail package?

The maximum combined length and girth for a Priority Mail Express or Priority Mail package is indeed 108 inches. This measurement is determined by adding the length of the package (the longest side) to the girth of the package, which is calculated as the distance around the thickest part of the package. The USPS has specific guidelines regarding package dimensions to ensure they can be handled efficiently in their delivery systems.

Packages that exceed this limit may not be accepted for Priority Mail services and could require different shipping options or carriers altogether. Understanding these dimensions is essential for anyone working with postal services to ensure compliance with USPS regulations and to avoid any issues when shipping packages.